Brush for street-sweepers.



PATENTED NOV. 3, 1903.

J. T. GOLLINS.

BRUSH PORSTREET SWEEPERS.

UNITED STATES Patented November 3, 190 3.

PATENT OFFICE.

JOHN THOMAS COLLINS, OF HARTFORD, CONNECTICUT, ASSIGNOR TO THE HARTFORDMOTOR MACHINE COMPANY, OF HARTFORD, CONNECTICUT,

A CORPORATION OF MAINE.

BRUSH FOR STREET-SWEEPERS.

SPECIFICATION forming part of Letters Patent No. 742,839, dated November3, 1903.

Application filed February 13, 1903. Serial No. 143,212. CNo model.)

To all whom it may concern.-

Be it known that I, J OHN THOMAS CoLLINs, a citizen of the UnitedStates, residing at Hartford, in the county of Hartford and State of 5Connecticut, have invented certain new and useful Improvements inCylinder Brushes for Street-Sweepers, of which the following is aspecification.

This invention relates to the construction of a cylindrical brush for astreet-sweeper.

The object of the invention is to provide a simple construction for abrush of this naturewith the bristles so held that they will not becomeloose and drop out when in use, but so attached that a new bunchofbristles can at any time be easily and quickly substituted for a bunchthat has become Worn.

Figure 1 of the accompanying drawings shows a longitudinal section of abrush that embodies the invention. Fig. 2 shows a transverse section ofthe brush. Fig. 3 shows a transverse section, on larger scale, of one ofthe bristle-holding lags and a bunch of bristles. Fig. 4 is a plan of asmall portion of one of the bristle-holding lags, and Fig. 5 is a sideview of one of the bristle-hubs.

In the form of the invention that is illustrated a pair of disks 1 areattached to a shaft 2 bymeans of spiders 3. Fastened about theperipheries of the disks are lags 4. These lags are preferably securedin place by means of nuts on lag-bolts 5, that are screwed to theinsides of the disks. Through each lag is a staggered row of threadedperforations. The bristles 6, which may be broom-corn, wires, ratan, orother material, are bound in of the hub bears tightly against the faceof the lag. The inner end of each hub has a slot 11, into which an endof a long screwdriver may be inserted for turning the hub when screwinga fresh bunch of bristles into position or removing a worn bunch from alag.

It is preferred to make the lags and the bristlehubs of Wood and to havethe threads in the perforations in the lags and on the shanks of thehubs fit tightly and to screw the hubs, with the bristles, into positionwhen the parts are very dry, so that when they become damp they willswell and tightly hold together against all possibility of accidentallybecoming loosened.

I claim as my invention- A cylindrical brush for a street-sweeper havingcircular heads,lags attached to the peripheries of the heads, threadedperforations through the lags, threaded hubs screwed 65 into theperforations in the lags and bunches of bristles bound to each hub,substantially as specified.

JOHN THOMAS COLLINS. Witnesses:

ETHEL M. LOWE,

H. R. WILLIAMS.

